acrn-hypervisor/devicemodel/include/usb_pmapper.h

128 lines
2.9 KiB
C

/*
* Copyright (C) 2018 Intel Corporation. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
*/
#ifndef _USB_DEVICE_H
#define _USB_DEVICE_H
#include <libusb-1.0/libusb.h>
#include "usb_core.h"
#define USB_NUM_INTERFACE 16
#define USB_NUM_ENDPOINT 15
#define USB_EP_ADDR(d) ((d)->bEndpointAddress)
#define USB_EP_ATTR(d) ((d)->bmAttributes)
#define USB_EP_PID(d) (USB_EP_ADDR(d) & USB_DIR_IN ? TOKEN_IN : TOKEN_OUT)
#define USB_EP_TYPE(d) (USB_EP_ATTR(d) & 0x3)
#define USB_EP_NR(d) (USB_EP_ADDR(d) & 0xF)
#define USB_EP_ERR_TYPE 0xFF
enum {
USB_INFO_VERSION,
USB_INFO_SPEED,
USB_INFO_BUS,
USB_INFO_PORT,
USB_INFO_VID,
USB_INFO_PID
};
struct usb_dev_ep {
uint8_t pid;
uint8_t type;
};
struct usb_dev {
/* physical device info */
int addr;
int version;
int speed;
int configuration;
uint8_t port;
uint8_t bus;
uint8_t pid;
uint16_t vid;
/* interface info */
int if_num;
int alts[USB_NUM_INTERFACE];
/* endpoints info */
struct usb_dev_ep epc;
struct usb_dev_ep epi[USB_NUM_ENDPOINT];
struct usb_dev_ep epo[USB_NUM_ENDPOINT];
/* libusb data */
libusb_device *ldev;
libusb_device_handle *handle;
};
/*
* The purpose to implement struct usb_dev_req is to adapt
* struct usb_data_xfer to make a proper data format to talk
* with libusb.
*/
struct usb_dev_req {
struct usb_dev *udev;
int in;
int seq;
/*
* buffer could include data from multiple
* usb_data_xfer_block, so here need some
* data to record it.
*/
uint8_t *buffer;
int buf_length;
int blk_start;
int blk_count;
struct usb_data_xfer *xfer;
struct libusb_transfer *libusb_xfer;
struct usb_data_xfer_block *setup_blk;
};
/* callback type used by code from HCD layer */
typedef int (*usb_dev_sys_cb)(void *hci_data, void *dev_data);
struct usb_dev_sys_ctx_info {
/*
* Libusb related global variables
*/
libusb_context *libusb_ctx;
pthread_t thread;
int thread_exit;
/* handles of callback */
libusb_hotplug_callback_handle conn_handle;
libusb_hotplug_callback_handle disconn_handle;
/*
* The following callback funtions will be registered by
* the code from HCD(eg: XHCI, EHCI...) emulation layer.
*/
usb_dev_sys_cb conn_cb;
usb_dev_sys_cb disconn_cb;
usb_dev_sys_cb notify_cb;
usb_dev_sys_cb intr_cb;
/*
* private data from HCD layer
*/
void *hci_data;
};
/* intialize the usb_dev subsystem and register callbacks for HCD layer */
int usb_dev_sys_init(usb_dev_sys_cb conn_cb, usb_dev_sys_cb disconn_cb,
usb_dev_sys_cb notify_cb, usb_dev_sys_cb intr_cb,
void *hci_data, int log_level);
void usb_dev_sys_deinit(void);
void *usb_dev_init(void *pdata, char *opt);
void usb_dev_deinit(void *pdata);
int usb_dev_info(void *pdata, int type, void *value, int size);
int usb_dev_request(void *pdata, struct usb_data_xfer *xfer);
int usb_dev_reset(void *pdata);
int usb_dev_data(void *pdata, struct usb_data_xfer *xfer, int dir, int epctx);
#endif